/[svn]/linuxsampler/trunk/src/linuxsampler.cpp
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Diff of /linuxsampler/trunk/src/linuxsampler.cpp

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revision 9 by schoenebeck, Wed Nov 5 14:47:10 2003 UTC revision 579 by schoenebeck, Tue May 24 19:20:20 2005 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003 by Benno Senoner and Christian Schoenebeck         *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6     *   Copyright (C) 2005 Christian Schoenebeck                              *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 20  Line 21 
21   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
22   ***************************************************************************/   ***************************************************************************/
23    
 #include <stdio.h>  
 #include <stdlib.h>  
 #include <unistd.h>  
24  #include <getopt.h>  #include <getopt.h>
25  #include <signal.h>  #include <signal.h>
26    
27  #include "global.h"  #include "Sampler.h"
28  #include "audioio.h"  #include "engines/EngineFactory.h"
29  #include "diskthread.h"  #include "drivers/midi/MidiInputDeviceFactory.h"
30  #include "audiothread.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
31  #include "midiin.h"  #include "engines/gig/Profiler.h"
32  #include "stream.h"  #include "network/lscpserver.h"
33  #include "RIFF.h"  #include "common/stacktrace.h"
34  #include "gig.h"  #include "common/Features.h"
35    
36  #define AUDIO_CHANNELS          2     // stereo  using namespace LinuxSampler;
37  #define AUDIO_FRAGMENTS         3     // 3 fragments, if it does not work set it to 2  
38  #define AUDIO_FRAGMENTSIZE      512   // each fragment has 512 frames  Sampler*    pSampler    = NULL;
39  #define AUDIO_SAMPLERATE        44100 // Hz  LSCPServer* pLSCPServer = NULL;
40    pthread_t   main_thread;
41  enum patch_format_t {  bool bPrintStatistics = false;
42      patch_format_unknown,  bool profile = false;
43      patch_format_gig,  bool tune = true;
     patch_format_dls  
 } patch_format;  
   
 AudioIO*         pAudioIO;  
 DiskThread*      pDiskThread;  
 AudioThread*     pAudioThread;  
 MidiIn*          pMidiInThread;  
   
 RIFF::File*      pRIFF;  
 gig::File*       pGig;  
 gig::Instrument* pInstrument;  
44    
45  void parse_options(int argc, char **argv);  void parse_options(int argc, char **argv);
46  void signal_handler(int signal);  void signal_handler(int signal);
47    void kill_app();
 int midi_non_blocking;  
 int num_fragments;  
 int fragmentsize;  
 bool instrument_is_DLS;  
 bool instruemtn_is_gig;  
 char midi_device[40];  
48    
49  int main(int argc, char **argv) {  int main(int argc, char **argv) {
50      pAudioIO = NULL;  
51      pRIFF    = NULL;      // initialize the stack trace mechanism with our binary file
52      pGig     = NULL;      StackTraceInit(argv[0], -1);
53    
54        main_thread = pthread_self();
55    
56      // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)      // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
57      signal(SIGINT, signal_handler);      signal(SIGINT, signal_handler);
58    
59      patch_format      = patch_format_unknown;      // register signal handler for all unusual signals
60      midi_non_blocking = 1;      // (we will print the stack trace and exit)
61      num_fragments     = AUDIO_FRAGMENTS;      struct sigaction sact;
62      fragmentsize      = AUDIO_FRAGMENTSIZE;      sigemptyset(&sact.sa_mask);
63      strcpy(midi_device, "/dev/midi00");      sact.sa_flags   = 0;
64        sact.sa_handler = signal_handler;
65        sigaction(SIGSEGV, &sact, NULL);
66        sigaction(SIGBUS,  &sact, NULL);
67        sigaction(SIGILL,  &sact, NULL);
68        sigaction(SIGFPE,  &sact, NULL);
69        sigaction(SIGUSR1, &sact, NULL);
70        sigaction(SIGUSR2, &sact, NULL);
71    
72      // parse and assign command line options      // parse and assign command line options
73      parse_options(argc, argv);      parse_options(argc, argv);
74    
75      if (patch_format != patch_format_gig) {      dmsg(1,("LinuxSampler %s\n", VERSION));
76          printf("Sorry only Gigasampler loading migrated in LinuxSampler so far, use --gig\n");      dmsg(1,("Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck\n"));
77          printf("to load a .gig file!\n");      dmsg(1,("Copyright (C) 2005 Christian Schoenebeck\n"));
78          return EXIT_FAILURE;  
79        if (tune) {
80            // detect and print system / CPU specific features
81            Features::detect();
82            dmsg(1,("Detected features: %s\n", Features::featuresAsString().c_str()));
83            // prevent slow denormal FPU modes
84            Features::enableDenormalsAreZeroMode();
85      }      }
86    
87      dmsg(("Initializing audio output..."));      // create LinuxSampler instance
88      pAudioIO = new AudioIO();      dmsg(1,("Creating Sampler..."));
89      int error = pAudioIO->Initialize(AUDIO_CHANNELS, AUDIO_SAMPLERATE, num_fragments, fragmentsize);      pSampler = new Sampler;
90      if (error) return EXIT_FAILURE;      dmsg(1,("OK\n"));
91      dmsg(("OK\n"));  
92        dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
93      // Loading gig file      dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
94      try {  
95          printf("Loading gig file...");      // start LSCP network server
96          fflush(stdout);      dmsg(1,("Starting LSCP network server (on TCP port %d)...", LSCP_PORT));
97          pRIFF       = new RIFF::File(argv[argc - 1]);      pLSCPServer = new LSCPServer(pSampler);
98          pGig        = new gig::File(pRIFF);      pLSCPServer->StartThread();
99          pInstrument = pGig->GetFirstInstrument();      pLSCPServer->WaitUntilInitialized();
100          pGig->GetFirstSample(); // just to complete instrument loading before we enter the realtime part      dmsg(1,("OK\n"));
101          printf("OK\n");  
102          fflush(stdout);      if (profile)
103      }      {
104      catch (RIFF::Exception e) {          dmsg(1,("Calibrating profiler..."));
105          e.PrintMessage();          gig::Profiler::Calibrate();
106          return EXIT_FAILURE;          gig::Profiler::Reset();
107      }          dmsg(1,("OK\n"));
     catch (...) {  
         printf("Unknown exception while trying to parse gig file.\n");  
         return EXIT_FAILURE;  
108      }      }
109    
110      DiskThread*  pDiskThread   = new DiskThread(((pAudioIO->FragmentSize << MAX_PITCH) << 1) + 3); //FIXME: assuming stereo      printf("LinuxSampler initialization completed. :-)\n\n");
111      AudioThread* pAudioThread  = new AudioThread(pAudioIO, pDiskThread, pInstrument);  
112      MidiIn*      pMidiInThread = new MidiIn(pAudioThread);      std::list<LSCPEvent::event_t> rtEvents;
113        rtEvents.push_back(LSCPEvent::event_voice_count);
114      dmsg(("Starting disk thread..."));      rtEvents.push_back(LSCPEvent::event_stream_count);
115      pDiskThread->StartThread();      rtEvents.push_back(LSCPEvent::event_buffer_fill);
116      dmsg(("OK\n"));  
117      dmsg(("Starting MIDI in thread..."));      while (true) {
118      pMidiInThread->StartThread();          if (bPrintStatistics) {
119      dmsg(("OK\n"));              std::set<Engine*> engines = EngineFactory::EngineInstances();
120                std::set<Engine*>::iterator itEngine = engines.begin();
121      sleep(1);              for (int i = 0; itEngine != engines.end(); itEngine++, i++) {
122      dmsg(("Starting audio thread..."));                  Engine* pEngine = *itEngine;
123      pAudioThread->StartThread();                  printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i,
124      dmsg(("OK\n"));                      pEngine->VoiceCount(), pEngine->VoiceCountMax(),
125                        pEngine->DiskStreamCount(), pEngine->DiskStreamCountMax()
126                    );
127                    fflush(stdout);
128                }
129            }
130    
131          sleep(1);
132          if (profile)
133          {
134              unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
135              unsigned int bv = gig::Profiler::GetBogoVoices(samplingFreq);
136              if (bv != 0)
137              {
138                  printf("       BogoVoices: %i         \r", bv);
139                  fflush(stdout);
140              }
141          }
142    
143          if (LSCPServer::EventSubscribers(rtEvents))
144          {
145              LSCPServer::LockRTNotify();
146              std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
147              std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
148              for (; iter != channels.end(); iter++) {
149                  SamplerChannel* pSamplerChannel = iter->second;
150                  EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
151                  if (!pEngineChannel) continue;
152                  Engine* pEngine = pEngineChannel->GetEngine();
153                  if (!pEngine) continue;
154                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_voice_count, iter->first, pEngine->VoiceCount()));
155                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_stream_count, iter->first, pEngine->DiskStreamCount()));
156                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_buffer_fill, iter->first, pEngine->DiskStreamBufferFillPercentage()));
157              }
158              LSCPServer::UnlockRTNotify();
159          }
160    
161      printf("LinuxSampler initialization completed.\n");      }
162    
     while(true) sleep(1000);  
163      return EXIT_SUCCESS;      return EXIT_SUCCESS;
164  }  }
165    
166  void signal_handler(int signal) {  void signal_handler(int iSignal) {
167      if (signal == SIGINT) {      switch (iSignal) {
168          // stop all threads          case SIGINT: {
169          if (pMidiInThread) pMidiInThread->StopThread();              if (pthread_equal(pthread_self(), main_thread)) {
170          if (pAudioThread)  pAudioThread->StopThread();                  if (pLSCPServer) {
171          if (pDiskThread)   pDiskThread->StopThread();                      pLSCPServer->StopThread();
172                        delete pLSCPServer;
173          sleep(1);                  }
174                    if (pSampler) delete pSampler;
175          // free all resources                  printf("LinuxSampler stopped due to SIGINT.\n");
176          if (pMidiInThread) delete pMidiInThread;                  exit(EXIT_SUCCESS);
177          if (pAudioThread)  delete pAudioThread;              }
178          if (pDiskThread)   delete pDiskThread;              return;
179          if (pGig)          delete pGig;          }
180          if (pRIFF)         delete pRIFF;          case SIGSEGV:
181          if (pAudioIO)      delete pAudioIO;              std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
182                break;
183          printf("LinuxSampler stopped due to SIGINT\n");          case SIGBUS:
184          exit(EXIT_SUCCESS);              std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
185                break;
186            case SIGILL:
187                std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
188                break;
189            case SIGFPE:
190                std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
191                break;
192            case SIGUSR1:
193                std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
194                break;
195            case SIGUSR2:
196                std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
197                break;
198            default: { // this should never happen, as we register for the signals we want
199                std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
200                break;
201            }
202      }      }
203        signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
204        std::cerr << "Showing stack trace...\n" << std::flush;
205        StackTrace();
206        sleep(2);
207        std::cerr << "Killing LinuxSampler...\n" << std::flush;
208        kill_app(); // Use abort() if we want to generate a core dump.
209    }
210    
211    void kill_app() {
212        kill(main_thread, SIGKILL);
213  }  }
214    
215  void parse_options(int argc, char **argv) {  void parse_options(int argc, char **argv) {
# Line 163  void parse_options(int argc, char **argv Line 217  void parse_options(int argc, char **argv
217      int option_index = 0;      int option_index = 0;
218      static struct option long_options[] =      static struct option long_options[] =
219          {          {
             {"numfragments",1,0,0},  
             {"fragmentsize",1,0,0},  
             {"dls",0,0,0},  
             {"gig",0,0,0},  
220              {"help",0,0,0},              {"help",0,0,0},
221                {"version",0,0,0},
222                {"profile",0,0,0},
223                {"no-tune",0,0,0},
224                {"statistics",0,0,0},
225              {0,0,0,0}              {0,0,0,0}
226          };          };
227    
228      while (true) {      while (true) {
229          res = getopt_long_only(argc, argv, "", long_options, &option_index);          /*
230              Stephane Letz : letz@grame.fr
231              getopt_long_only does not exist on OSX : replaced by getopt_long for now.
232            */
233            res = getopt_long(argc, argv, "", long_options, &option_index);
234          if(res == -1) break;          if(res == -1) break;
235          if (res == 0) {          if (res == 0) {
236              switch(option_index) {              switch(option_index) {
237                  case 0:                  case 0: // --help
238                      num_fragments = atoi(optarg);                      printf("usage: linuxsampler [OPTIONS]\n\n");
239                        printf("--help             prints this message\n");
240                        printf("--version          prints version information\n");
241                        printf("--profile          profile synthesis algorithms\n");
242                        printf("--no-tune          disable assembly optimization\n");
243                        printf("--statistics       prints periodically statistics\n");
244                        exit(EXIT_SUCCESS);
245                      break;                      break;
246                  case 1:                  case 1: // --version
247                      fragmentsize = atoi(optarg);                      printf("LinuxSampler %s\n", VERSION);
248                        exit(EXIT_SUCCESS);
249                      break;                      break;
250                  case 2:                  case 2: // --profile
251                      patch_format = patch_format_dls;                      profile = true;
252                      break;                      break;
253                  case 3:                  case 3: // --no-tune
254                      patch_format = patch_format_gig;                      tune = false;
255                      break;                      break;
256                  case 4:                  case 4: // --statistics
257                      printf("usage: linuxsampler [OPTIONS] <INSTRUMENTFILE>\n\n");                      bPrintStatistics = true;
                     printf("--numfragments     sets the number of audio fragments\n");  
                     printf("--fragmentsize     sets the fragment size\n");  
                     printf("--dls              loads a DLS instrument\n");  
                     printf("--gig              loads a Gigasampler instrument\n");  
                     exit(0);  
258                      break;                      break;
259              }              }
260          }          }
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